(make-bit-reader byte-reader) -> bit-reader Given a BYTE-READER (a thunk), construct and return a function (bit-reader N) -> integer that reads N bits from a byte-stream represented by the BYTE-READER. The BYTE-READER is a function that takes no arguments and returns the current byte as an exact integer [0-255]. The byte reader should return #f on EOF. The bit reader returns N bits as an exact unsigned integer, 0 -... (no limit). N must be a positive integer, otherwise the bit reader returns #f. There is no upper limit on N -- other than the size of the input stream itself and the amount of (virtual) memory an OS is willing to give to your process. If you want to read 1M of _bits_, go ahead. It is assumed that the bit order is the most-significant bit first.